H02M 3/1588
Comprising at least one synchronous rectifier element
Official title: {comprising at least one synchronous rectifier element (H02M3/1582, H02M3/1584 take precedence)}
H02M3/1588 (Comprising at least one synchronous rectifier element) appears on 2,289 US grants and 2,345 published applications in this corpus.
Search patents in H02M- Granted patents
- 2,289
- Published applications
- 2,345
- Assignees
- 668
- Inventors
- 3,349
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 16 | 0 |
| 1999 | 17 | 0 |
| 2000 | 20 | 0 |
| 2001 | 34 | 4 |
| 2002 | 25 | 31 |
| 2003 | 24 | 41 |
| 2004 | 40 | 95 |
| 2005 | 65 | 71 |
| 2006 | 68 | 96 |
| 2007 | 66 | 101 |
| 2008 | 63 | 100 |
| 2009 | 86 | 125 |
| 2010 | 98 | 100 |
| 2011 | 106 | 111 |
| 2012 | 85 | 143 |
| 2013 | 113 | 113 |
| 2014 | 133 | 152 |
| 2015 | 114 | 154 |
| 2016 | 160 | 114 |
| 2017 | 171 | 119 |
| 2018 | 150 | 121 |
| 2019 | 161 | 96 |
| 2020 | 110 | 82 |
| 2021 | 69 | 70 |
| 2022 | 72 | 82 |
| 2023 | 64 | 58 |
| 2024 | 50 | 58 |
| 2025 | 47 | 72 |
| 2026 | 42 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Active rectification circuitry15 Sep 2026US 12,738,851 B2Texas Instruments Incorporated
- Semiconductor Device, Semiconductor System and Switching Power Device8 Oct 2026US 2026/0312496 A1Rohm Co., Ltd.
- Electrical device including switching converter which controls a switching frequency to be outside an audible noise range1 Oct 2026US 2026/0302917 A1Samsung Electronics Co., Ltd.
- Switching regulator17 Sep 2026US 2026/0280432 A1Ablic Inc.
- Drive circuit for switching element and switching circuit3 Sep 2026US 2026/0261194 A1OMRON Corporation
- Rectifier circuit, and semiconductor device and power supply device using same3 Sep 2026US 2026/0261196 A1Minebea Power Semiconductor Device Inc.
Most cited
By later US patents
- FET power converter with reduced switching loss1,520US 4,727,308 AInternational Business Machines Corporation · 1988
- Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit354US 5,481,178 ALinear Technology Corporation · 1996
- Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit319US 6,580,258 B2Linear Technology Corporation · 2003
- Rectifying-and-modulating circuit and wireless power receiver incorporating the same270US 9,225,196 B2Richtek Technology Corporation · 2015
- Electric power converter262US 7,948,221 B2Honda Motor Co., Ltd. · 2011